Oracle

What Does oracle-rdbms-server-11gR2-preinstall Not Do?

I was working on a project to clone Oracle install to a new Linux server and this should be simple as oracle-rdbms-server-11gR2-preinstall RPM can be used to configure the server, right? So simple that I did not read the documentation. However, I did review Requirements for Installing Oracle 11gR2 RDBMS on RHEL6 or OL6 64-bit…

Oracle RMAN Restore to the Same Machine as the Original Database

Among the most critical but often most neglected database administration tasks is testing restore from backup. But sometimes, you don’t have a test system handy, and need to test the restore on the same host as the source database. In such situations, the biggest fear is overwriting the original database. Here is a simple procedure…

RMAN Infatuation?

Lately, I am becoming infatuated with RMAN again. Have you ever run “restore database preview”? Are you curious about how the recovery SCN are determined? Media recovery start SCN is 1515046 Recovery must be done beyond SCN 1515051 to clear datafile fuzziness If you are, then I will demonstrate this for you. RMAN LEVEL0 backup…

Watch for Pythian Speakers at Collaborate 14

This year COLLABORATE 14 is being held at The Venetian and Sands Expo Center in Las Vegas, April 7-11. Some Pythian folks will be attending and speaking at the event, so be sure to watch for their presentations: Session Date Start Time Session Room Session Title Presenter Name April 9, 2014 8:30 AM Level 3,…

RMAN – Validating Archivelog Backup

There are many posts out there about validating backup. However, none seem to address some recent concerns a client of mine had. Currently, backup validation is performed once a week and the question asked,  “How to validate all archivelog backup?” List Backups – [D}atafile and [A]rchivelog backup from Incremental Level 0/1 RMAN> list backup summary;…

Automating DataPump Export

What’s the most elaborate thing you have done with DataPump? So there I was, given the requirement to export multiple partitions for multiple tables where each partition has its own dump file having the format “tablename_partitionanme.dmp”, pondering how this can be done efficiently. With the following metadata and requirements, what approach would you take? If…

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